rootfs_dir=$PWD/ubuntu-focal-armhf-bootstrap

cp 03_config_rootfs.sh  $rootfs_dir/
mount -t proc /proc  $rootfs_dir/proc
mount -t sysfs /sys  $rootfs_dir/sys
mount -o bind /dev  $rootfs_dir/dev
mount -o bind /dev/pts  $rootfs_dir/dev/pts
LANG=zh_CN.UTF-8 chroot $rootfs_dir/ /bin/bash



